My 98 E300D W210 experienced a one-time (so far) starting problem 2 weeks ago. That morning the car started normally and I drove it 3 miles and shut it down while I dropped off the kids. 5 minutes later I tried to start it but the starter wouldn't turn over. All the electric stuff inside the car seemed to be ok. Couldn't asses the brightness of the headlights since it was a sunny day. Glow plug light ran its normal cycle, but no clicking and no slow cranking. I then borrowed an suv to try jump-starting. When I connected the cables, there was an audible change in engine RPM of the rescue vehicle. A minute or 2 later I tried the key again and the engine fired right up. Ok, sounds like a weak battery. No indication of the age of the battery from the previous owner. I let the car sit in my driveway for a few days and tried to replicate the problem, but it started every time. Took the battery to the parts shop and they tested it under load and it passed. Battery went back in to the car and I've been driving it since without any indication of weakness.

I'd gladly pay the $80 for a new battery if it would solve the problem, but I suspect something else is to blame.

any suggestions?

Thanks,
Paul

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1998 E300D 1-tank Elsbett Veggie system
1986 190D 2-tank Veggie system -Sold